Rocky Cola Cafe 2201 Honolulu Ave, Montrose, CA91020 Located at the edge of the downtown Montrose shopping district, the Rocky Cola Cafe is a vintage style diner and soda…More fountain. The interior is nostalgic 1950s, with several bright-colored booths, a bar/lunch counter, and of course, a jukebox. Customers might enjoy the large collection of vintage celebrity and Americana photos, too. Breakfast specials are available on the weekdays. The menu offers old-fashioned milk shakes, steak salads, club sandwiches and burgers. Beer and wine are served.